Home / 258,181.20-386,443.04-137,937.69

Finding the Fourth Proportional to 258,181.20, 386,443.04 and 137,937.69

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Solution

The fourth proportional to 258,181.20, 386,443.04 and 137,937.69 is: 206,463.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,181.20 : 386,443.04 = 137,937.69 : x
  2. Step 2: Convert to fraction form
    258,181.20/386,443.04 = 137,937.69/x
  3. Step 3: Cross multiply
    258,181.20x = 386,443.04 × 137,937.69
  4. Step 4: Simplify right side
    258,181.20x = 53,305,059,564.49
  5. Step 5: Solve for x
    x = 53,305,059,564.49/258,181.20
  6. Step 6: Final answer
    x = 206,463.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.